| 摘要 |
<p>Being useful with a rotary driving tool powered electrically or pneumatically, a fastener-driving accessory comprises a collar-mounting stem (30) and two interchangeable collars, each being mountable coaxially and removably on the stem (30) and being secured removably when mounted thereon. The collar-mounting stem (30) has a collar-mounting portion (34). Each collar (50) defines a stem-receiving socket (54), which has a similar but larger cross-section and into which the collar-mounting portion (34) can be non-rotatably plugged. A fastener-driving collar defines interchangeable fastener-driving socket (56) and stem-receiving socket (54). A bit-mounting collar accommodates a fastener-driving bit. The collar-mounting stem (30) is connected to a tool-drivable stem, by a quill (40). <IMAGE></p> |
